Item #1604905 | MTD Genuine OEM Part #954-0364
To help save you extra money, we're offering you a less expensive option... ?
Item #1603603
Fits Models: MTD 400 series riders, 36" and 38" deep decks and800 series garden tractors, 50" deep decks Application: Engine to deck Length: 67 1/2" Type: Covered Width: 5/8" Deck pulley to lower engine pulley
No modifications required.